Professional Reference articles are designed for health professionals to use. You may find one of our health articles more useful. NICE has issued rapid update guidelines in relation to many of these. This guidance is changing frequently.

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Gastroenterology



Digestive, Stomach and Bowel Problems (including haemorrhoids but not cancer) | Men's Health Forum
A look at the time it takes for food to pass through the gut from mouth to anus. In a healthy adult, transit time is about 24—72 hours. Read the article The human digestive system for further information. Digestive activity begins with the sights, sounds and smells of food. Just looking at or smelling appetising food can result in the brain sending signals to the salivary glands to make the mouth water and to the stomach to secrete gastric juice. Chewing mechanically mixes food with saliva from the salivary glands. Amylase in saliva chemically digests starch in the food.


Do babies poop in the womb? What to know about digestive system development
Rectal foreign bodies are large foreign items found in the rectum that can be assumed to have been inserted through the anus, rather than reaching the rectum via the mouth and gastrointestinal tract. It can be of clinical relevance if the patient cannot remove it the way they intended. Smaller, ingested foreign bodies, such as bones eaten with food, can sometimes be found stuck in the rectum upon x-ray and are rarely of clinical relevance.



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